Question

part 1 - levels of hierarchical organization

1. cell

a. made up of organs

1. tissue

b. an individual animal, plant, or single - celled life form.

1. organ

c. the basic unit of life

1. organ system

d. a group of cells that work together to perform a specific function

1. organism

e. a collection of tissues that forms a specialized functional unit

Explanation:

• Cell: The cell is the basic unit of life.
• Tissue: A group of cells that work together to perform a specific function.
• Organ: A collection of tissues that forms a specialized functional unit.
• Organ System: Made up of organs.
• Organism: An individual animal, plant, or single - celled life form.

Answer:

1. C. the basic unit of life
2. D. a group of cells that work together to perform a specific function
3. E. a collection of tissues that forms a specialized functional unit
4. A. made up of organs
5. B. an individual animal, plant, or single - celled life form